1 1 8 Programming in M4 1 ******************* 1 1 Autoconf is written on top of two layers: "M4sugar", which provides 1 convenient macros for pure M4 programming, and "M4sh", which provides 1 macros dedicated to shell script generation. 1 1 As of this version of Autoconf, these two layers still contain 1 experimental macros, whose interface might change in the future. As a 1 matter of fact, _anything that is not documented must not be used_. 1
1 · M4 Quotation Protecting macros from unwanted expansion · Using autom4te The Autoconf executables backbone · Programming in M4sugar Convenient pure M4 macros · Debugging via autom4te Figuring out what M4 was doing 1